期刊
CORROSION SCIENCE
卷 107, 期 -, 页码 193-203出版社
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.corsci.2016.02.032
关键词
Low alloy steel; Weight loss; SEM; XRD; Acid corrosion
资金
- National Natural Science Foundation of China [51471188]
- Natural Science Foundation of Shandong Province [ZR2014EMM002]
- Fundamental Research Funds for the Central Universities [15CX06057A]
The synergistic effect of O-2, H2S and SO2 impurities on the corrosion behavior of X65 steel corrosion was evaluated in the water-saturated supercritical CO2 system. Weight loss measurements showed that the synergistic effect of multiple impurities significantly increased the corrosion rate of steel. Surface characterization of corrosion scales using SEM, EDS and XRD showed that low concentrations of impurities notably changed the characteristics of corrosion scales. The interactions among O-2, H2S and SO2 resulted in additional formation reactions of elemental sulfur, sulfuric acid and water and consequently accelerated the corrosion of steel consistent with the high synergistic interaction impact factors. (C) 2016 Elsevier Ltd. All rights reserved.
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